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The autopilot toy planes, equipped with cameras, help conservationists detect illegal logging and mining earlier in the remote parts of the Amazon basin.

What if microbes could ferment sugar into narcotics, like the way yeasts make beer? That day is quickly approaching. This week scientists report all the steps needed to make morphine in yeast.

Women with dense breasts are more likely to get cancer and less likely to catch it early on a mammogram. But degree of density matters too, a study finds, as do other factors like family history.

A panel of top nutrition experts is recommending that Americans adopt a more plant-based diet and eat less meat and sugar. It also found that most people are not consuming too much cholesterol.

Oil companies are laying off thousands of workers, and firms that provide services to support the industry — from drilling to seismic surveys — have been told they must slash costs to keep working.

Measles infected hundreds of children at a Philadelphia church whose members didn't believe in modern medicine. In a rare step, health officials moved to compel the families to vaccinate the kids.

Privately run Medicare Advantage plans offer seniors an alternative to standard Medicare. The plans are paid monthly fees based on complex risk formulas that are drawing federal scrutiny.

The Pepino Power Authority of Puerto Rico is a volunteer band of citizens restoring power on their own. The island's electric utility says their work is illegal. Residents don't care.

The Navy admiral tapped by President Carter to lead the spy agency conducted a controversial downsizing of risky clandestine operations — a move that angered many in the intelligence community.

NPR's Mary Louise Kelly speaks with Michèle Flournoy, former Under Secretary of Defense for Policy, about the impact a government shutdown can have on the military.